mineral
Gold
Native Gold (Au)
Hardness: 2.5–3 on Mohs scale; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric (Face-centered cubic); Cleavage: None; Specific Gravity: 19.3
- Hardness
- 2
- Color
- Golden-yellow
- Luster
- Metallic
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Physical properties
Hardness: 2.5–3 on Mohs scale; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric (Face-centered cubic); Cleavage: None; Specific Gravity: 19.3
Formation & geological history
Primarily formed in hydrothermal veins and placer deposits; created in supernovae and through neutron star collisions, then concentrated by geological fluids.
Uses & applications
Extensively used in jewelry, electronics (due to high conductivity), medicine, and as a global currency and investment standard.
Geological facts
Gold is extremely malleable; a single ounce can be beaten into a sheet covering nearly 100 square feet. It is chemically inert, meaning it does not rust or tarnish.
Field identification & locations
Identified by its high density, golden streak, and malleability (it bends rather than shatters). Found globally, with major deposits in South Africa, Australia, and the United States.
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Mineral/Rock
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Green Apatite on Albite
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mineral